Finding the Fourth Proportional to 70,890,432.12, 97,828,884 and 38,295,384.12
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Solution
The fourth proportional to 70,890,432.12, 97,828,884 and 38,295,384.12 is: 52,847,677.45
Step by Step Solution
- Step 1: Write the proportion equation
70,890,432.12 : 97,828,884 = 38,295,384.12 : x - Step 2: Convert to fraction form
70,890,432.12/97,828,884 = 38,295,384.12/x - Step 3: Cross multiply
70,890,432.12x = 97,828,884 × 38,295,384.12 - Step 4: Simplify right side
70,890,432.12x = 3,746,394,690,810,922 - Step 5: Solve for x
x = 3,746,394,690,810,922/70,890,432.12 - Step 6: Final answer
x = 52,847,677.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.